Tread design for footwear



FIG. 1 is a bottom perspective view of a tread design for footwear showing my new tread design, the broken line showing of a slipper being provided for illustrative purposes only;

FIG. 2 is a bottom plan view of the tread design for footwear;

FIG. 3 is a side view of one side of the tread design for footwear, the other side view being a mirror image thereof;

FIG. 4 is an end view of the toe end of the tread design for footwear; and

FIG. 5 is an end view of the heel end of the tread design for footwear.

The broken line showing of a slipper in FIG. 1 is for illustrative purposes only, and forms no part of the claimed design. 

The ornamental design for a tread design for footwear, as shown and described. 